Published: April 13th, 2012 at 8:56 am ET
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Title: Nitrogen injection temporarily stops at Fukushima Daiichi reactors
Source: Kyodo
Date: April 13, 2012
Tokyo Electric Power Co. said the injection of nitrogen gas into three nuclear reactor containers [...] stopped temporarily after 1 a.m. Friday.The company has continued injecting nitrogen gas into the containers of Nos. 1, 2 and 3 reactors to prevent a hydrogen explosion. After using a backup system the injector resumed [...]
This is the fourth time since March that the injection of nitrogen gas has stopped, the company said. [...]
Title: Nitrogen injection stopped again
Source: Fukushima Diary
Date: April 12, 2012
Tepco sent another emergency email to the journalists at 04:18:37JST 4/13/2012.[Translation]
At 1:30 of 4/13/2012, Tepco staff confirmed nitrogen injection equipment was automatically stopped because it was alarmed that the air compressor went out of order at 1:04.
At 3:10, nitrogen injection was restarted by using another nitrogen injection equipment. [...]
Published: April 13th, 2012 at 8:56 am ET
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sending...
how long will they inject nitrogen for? until they run out? haha
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You can separate nitrogen directly. The laser I work with can do it, great for cutting stainless.
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The "SUDDEN EXTREME COLD" must be very hard on the surrounding structure, Concrete and steel, … actually may be harmful and hurry the process of deterioration causing cracks and splits, brittleness !
Ever seen a hot dog dipped into this stuff ! I did as a small child at a school auditorium !
Drop it afterword's and it shatters, these injection may be much more harmful then good but may show the dire situation they have at this point !
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doc your'e taking about liquid nitrogen. I believe what's being injected is gaseous, to dilute the saturation of hydrogen (and oxygen) that could result in more Hydrogen explosions…
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Yes and I assume it is not for cooling but for neutralizing hydrogen ? Is this right ?
A liquid poured into a container !
http://en.wikipedia.org/wiki/Nitrogen
In the dry ice is solid !
http://en.wikipedia.org/wiki/Dry_ice
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Kyodo TEPCO finds 35-ton machine fallen in Fukushima No. 3 spent fuel pool http://dlvr.it/1R8wR7
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Whoopie,
A Arney video posted here yesterday where this was shown the fueling crane in the fuel pool with crushed and mangled fuel rods laying in front of it and under it !
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And it was out of the water, dry !!!
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Oh, I thought that was a new one. Sorry.
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I found it,
@ 2:11 the refueling bridge crane ! out of the water !!!
Racks of Nuke Fuel Rods Exposed to Air – Volatile Plutonium Escaping – Arnie Gundersen
Uploaded by 58784677 on Apr 1, 2011
Updates on Fukushima – 2nd update for 31-03-2011
http://www.youtube.com/watch?v=b7iu7GwqXWo&feature=player_detailpage
I found it, … that was work, biut in the end all I had to do is look in my utube history, duh ! ! LOL
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xdr…Really good one. I mised it the first time round.
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There must be a lot of fuel at risk of melting that has not left the containment. The situation sounds extremely dire. The longer this fuel is not contained and shielded, the stronger the beta and gamma releases will be. Eventually, as noted many other times here, workers will be forced to wear heavier and heavier protective gear.
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According to Outnow (HP) the report out now re: Akita-san is they are hiring Koreans and African Americans usa workers to go there now, WITHOUT PROTECTION.
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Not to worrie, others may not know yet and like to read and see, I am looking for that video, can't remeber where it was posted !
grr lol
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That's ok. Post it in Forum if you find it!
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Nitrogen is useless now IMHO, because there is no zircaloy left in Reactors 1, 2,or 3. All fuel has melted completely, has exited the reactors, and has exited containments. Fuel is now corium, the lava which never cools, deep beneath Fuku ground.
Say, if the oil industry is clever enough to spot a pool of oil under 1,000' of dirt, why can't the nuke industry come up with a way to "see" corium 100' beneath ground level? If they knew where the 3 coriums are, then they wouldn't be wasting time pumping nitrogen and water through empty containments. Perhaps an aerial infared camera? Just a suggestion.
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philipupnorth,
There is remnant fuel in there and is fissioning, and yes I too believe the technology we have can locate the corrums and I do believe they do know where they are and how far down, and if it works to their benefit they will say so in time ! Possibly when the coriums are less likely to cause more harm to the outside world, meaning they have burnt their way somewhere to lava or the earths mantel !
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Xdrfox: You are obviously correct. There is residual corium melt in the reactors, containments, and basements of Fuku 1-3. My point was that there is no zircaloy left. Zircaloy makes hydrogen, and nitrogen was pumped in to displace oxygen and avoid further hydrogen explosions. If no Zircaloy is there, why continue to pump in nitrogen? Do they believe nitrogen will cool residual corium and reduce the fissioning?
The coriums may be venting steam and radioactivity for thousands of years? How many feet per day of bedrock does a corium of many tons burn through? How long will it take to reach lava or mantel? Calculations, anyone?
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philipupnorth,
"Do they believe nitrogen will cool residual corium and reduce the fissioning?"
It would for only a few seconds at best, now they keep saying in print "gas" but I think they are pumping liquids in them !! It would last longer then gas and make more sense in cooling, if they are not fight hydrogen build ups that I also don't think is the problem, it is long past any rods in the reactors would still be in-cased and not lava at the bottom or stuck somewhere !
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philipupnorth, yes the zircalloy was oxidized a long time ago, but hydrogen is still being produced by radiolysis as the corium comes into contact with water. There are holes under the reactors that allow the hydrogen to enter the containment. Of course, the ground is a rat's maze of fissures, so hydrogen is coming up all over the site.
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Many thanks Bobby1 and catweazel. Good point. But have there been hydrogen explosions outside the plants where hydrogen exits the ground along with steam?
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There have been flames occasionally visible on the webcams coming from the ground, also steam and smoke coming out.
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Radioactive Smoke/Steam Coming Of Ground At Fukushima 2.28.2012; via A Green Road Blog
http://agreenroad.blogspot.com/2012/02/tokyo-alert-severe-radioactive-smoke.html
Fukushima Lies Movie Part I and II; via A Green Road Blog; via A Green Road Blog
http://agreenroad.blogspot.com/2012/03/fukushima-lies-movie-part-i-and-ii.html
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Explosion possibility?
Bobby do you think anyone is still actually working at the plant?
And what do you think about the status of spent fuel pools 3 and 4?
Thank you!
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majia,
I haven't seen anybody lately of the Tepcam, though I haven't been watching it much lately. I doubt if SFP #3 is intact in any way. SFP #4 may still be there because work has been done on it, removing the crane and walls… if it was completely gone the radiation would have been too high for anyone to approach it.
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Additionally Water and Cesium or Strontium produces hydrogen.
immediately. Will apply to other parts of the decay chain also
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BTW, are any of the containments 1-3 able to hold pressure these days? I saw last year some indication that 1&3 held some pressure, but Containment2 was clearly breached. Haven't seen any recent pressure data.
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What really happened at Fukushima? via A Green Road Blog http://agreenroad.blogspot.com/2012/02/what-really-happened-at-fukushima.html
How Dangerous Is 400-600 Pounds Of Plutonium Nano Particle Dust Liberated By Fukushima? Via A Green Road Blog http://agreenroad.blogspot.com/2012/03/how-dangerous-is-400-600-pounds-of.html
Is Fukushima really in cold shutdown? via A Green Road Blog
http://agreenroad.blogspot.com/2012/03/fukushima-is-it-really-in-cold-shutdown.html
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AGreenRoad: Helpful post. Many thanks.
"Top Secret Study; Effect of Injected Plutonium On Humans
Only one out of all of the human test subjects in this ‘study’ were given any information about what was being done to them. Two adults were injected with 10 micrograms, and died shortly after that. Others were injected with smaller amounts and also died within several years. Only two test subjects lived longer than several years, but no details are provided about what diseases they suffered from, whether they had problems with pregnancy, fertility, birth defects, etc. This was a badly designed study first of all, and did not give informed consent or any compensation to any of the victims. It does tend to suggest that the industry from the very beginning has few or no ethical or moral boundaries. Here we see supposed US medical professionals acting much like the medical doctors in the Jewish concentration camps where medical experiments were carried out without any compensation and no informed consent. http://library.lanl.gov/cgi-bin/getfile?00326640.pdf."
That last sentence should read "German concentration camps", or "Nazi concentration camps".
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